scholarly journals Photophysical Investigation of a Benzimidazole Derivative and Its Applications in Selective Detection of Fe3+, Thermosensing and Logic Gates

2021 ◽  
Author(s):  
Aishwarya Nadgir ◽  
Ashok H. Sidarai
Keyword(s):  
Benzimidazole Derivative ◽  
Logic Gates ◽  
Selective Detection

Arene-based fluorescent probes for the selective detection of iron

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97874-97882 ◽  
Author(s):  
Pramod Kumar ◽  
Vijay Kumar ◽  
Rajeev Gupta
Keyword(s):  
Metal Ions ◽  
Fluorescent Probes ◽  
Cell Imaging ◽  
Logic Gates ◽  
Selective Detection ◽  
Potential Applications

Amide based probes containing phenyl (L1), naphthyl (L2) and anthracenyl (L3) groups were screened towards metal ions. Probes L2 and L3 display sensing for Fe2+ and Fe3+ ions. The L3–Fe3+ system is shown to have potential applications in logic gates and cell imaging.

scholarly journals Photophysical Investigation of A Benzimidazole Derivative and Its Applications In Selective Detection of Fe3+, Thermosensing and Logic gates.

2021 ◽  
Author(s):  
Aishwarya Nadgir ◽  
Ashok H Sidarai
Keyword(s):  
Metal Ions ◽  
Logic Gate ◽  
Benzimidazole Derivative ◽  
Average Particle Size ◽  
Logic Gates ◽  
Relative Sensitivity ◽  
Average Particle ◽  
Stoichiometric Ratio ◽  
Potential Candidate ◽  
Ion Temperature

Abstract The fluorescence based applications such as chemosensing of Fe3+ ion, temperature sensing, NOR-gate molecular logic operations, and fluorescent ink were achieved using an expired medicine namely Pantoprazole (sensor1) which is a derivative of benzimidazole class. The phenomenon of quenching was a basic principle used in sensing Fe3+. We found that there was a combined effect of dynamic and static processes in quenching of fluorescence of sensor1. To confirm the selectiveness of sensor1, we performed interference experiments with other metal ions. There was no interference between these metal ions and Fe3+. The low LOD value of 1.032µM suggested that the molecule is highly sensitive towards Fe3+. A high quantum yield of 8.087% increased the possibility of using sensor1 for light applications. There was a 2:1 stoichiometric ratio between sensor1 and Fe3+. The FTIR data analysis confirmed the presence of functional groups S = O, C-O-C, etc. The average particle size found with the DLS method was 130.5nm. The zeta potential of -12.7mV indicated that sensor1 is quite stable in solution form. For logic gate application EDTA (Ethylenediaminetetraaceticacid) and Fe3+ were considered as inputs and fluorescence intensity was taken as an output. In thermal sensing application, the high value of activation energy i.e 908meV and relative sensitivity of 1.2% 0C−1 affirmed that sensor1 can be used for thermal applications. The sensor1 was also apt for fluorescent ink application. Hence this investigation deduced that sensor1 can be a potential candidate for such applications over other conventional synthesized fluorescent probes.

Turn-on fluorescence sensor for selective detection of fluoride ion and its molecular logic gates behavior

2020 ◽  
Vol 317 ◽  
pp. 113913
Author(s):  
Dhanushkodi Mohanasundaram ◽  
Gujuluva Gangatharan Vinoth Kumar ◽  
Senthuran Karthick Kumar ◽  
Balaji Maddiboyina ◽  
Ramachandran Palpandi Raja ◽  
...  
Keyword(s):  
Logic Gates ◽  
Fluorescence Sensor ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Turn On ◽  
Molecular Logic ◽  
Molecular Logic Gates

Selective detection of glutathione based on the recovered fluorescence of BSA‐AuNCs/Cu 2+ system

2019 ◽  
Vol 14 (9) ◽  
pp. 952-956
Author(s):  
Yining Zhu ◽  
Wang Li ◽  
Cheng Ju ◽  
Xiang Gong ◽  
Wenhao Song ◽  
...  
Keyword(s):  
Selective Detection

Improvement of Single-Electron Digital Logic Gates by Utilizing Input Discretizers

2016 ◽  
Vol E99.C (2) ◽  
pp. 285-292 ◽  
Author(s):  
Tran THI THU HUONG ◽  
Hiroshi SHIMADA ◽  
Yoshinao MIZUGAKI
Keyword(s):  
Logic Gates ◽  
Single Electron ◽  
Digital Logic

Development of Ultrasensitive and Arsenic (III) Selective Upconverting (NaYF4: Yb3+, Er3+) Platform

2020 ◽  
Author(s):  
Suman Duhan ◽  
Kedar Sahoo ◽  
Sudhir Kumar Singh ◽  
Manoj Kumar
Keyword(s):  
Heavy Ions ◽  
Leaf Extract ◽  
Moringa Oleifera ◽  
Solid Phase ◽  
Selective Detection ◽  
Arsenic Pollution ◽  
Apparent Effect ◽  
Safe Limit ◽  
Interfering Ions ◽  
Resonance Transfer

The development of a sensitive alpha-NaYF4:Yb3+, Er3+ solid-phase upconverting platform (UCP) has been realized using Moringa oleifera leaf extract for selective detection of arsenic (As III) contamination in drinking water. The presence of polyphenols in the leaves extract is shown to induce luminescence resonance transfer (LRET), diminishing thereby the Er3+ upconverting red and green emissions activated by 980 nm excitation. However, addition of As3+ species interrupts the LRET process and restores emission proportionately. This feature allows platform to selectively detect arsenic pollution in water below the safe limit of 10 ppt. The uniqueness of UCP lies in monitoring the As3+ contamination in samples containing heavy ions (Cd2+, Hg2+) as well, without apparent effect on the signal reproducibility. UCP is also found to be insensitive to other interfering ions like Pb2+, H2PO4-, F-, Cl-, Ca2+, Mg2+, Sn2+, Cr6+, Fe2+ and Co2+, if present.<br><br>

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